Rosacea
What Is Rosacea?
Rosacea is a chronic disease that affects the skin and sometimes the eyes. The disorder is characterized by redness, pimples, and, in advanced stages, thickened skin. Rosacea usually affects the face; other parts of the upper body are only rarely involved.
Who Gets Rosacea?
Approximately 14 million people in the United States have rosacea. It most often affects adults between the ages of 30 and 60. Rosacea is more common in women (particularly during menopause) than men. Although rosacea can develop in people of any skin color, it tends to occur most frequently and is most apparent in people with fair skin.
What Causes Rosacea?
Doctors do not know the exact cause of rosacea but believe that some people may inherit a tendency to develop the disorder. People who blush frequently may be more likely to develop rosacea. Some researchers believe that rosacea is a disorder where blood vessels dilate too easily, resulting in flushing and redness. Factors that cause rosacea to flare up in one person may have no effect on another person.
Although the following factors have not been well-researched, some people claim that one or more of them have aggravated their rosacea: heat (including hot baths), strenuous exercise, sunlight, wind, very cold temperatures, hot or spicy foods and drinks, alcohol consumption, menopause, emotional stress, and long-term use of topical steroids on the face. Patients affected by pustules may assume they are caused by bacteria, but researchers have not established a link between rosacea and bacteria or other organisms on the skin, in the hair follicles, or elsewhere in the body.
Credit: National Institute of Health.